/******************************************************************************
 *                                                                            *
 * Copyright (C) 2024 by HystericalDragons                                    *
 *                                                                            *
 * This program is free software: you can redistribute it and/or modify       *
 * it under the terms of the GNU General Public License as published by       *
 * the Free Software Foundation, either version 3 of the License, or          *
 *  (at your option) any later version.                                       *
 *                                                                            *
 * This program is distributed in the hope that it will be useful,            *
 * but WITHOUT ANY WARRANTY; without even the implied warranty of             *
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the              *
 * GNU General Public License for more details.                               *
 *                                                                            *
 * You should have received a copy of the GNU General Public License          *
 * along with this program. If not, see <http://www.gnu.org/licenses/>.       *
 *                                                                            *
 ******************************************************************************/

package io.nekohasekai.sagernet.database

import androidx.room.TypeConverter

class StringCollectionConverter {
    companion object {
        @TypeConverter
        @JvmStatic
        fun fromSet(set: Set<String>): String = if (set.isEmpty()) {
            ""
        } else {
            set.joinToString(",")
        }
        @TypeConverter
        @JvmStatic
        fun toSet(str: String): Set<String> = if (str.isBlank()) {
            emptySet()
        } else {
            str.split(",").toSet()
        }
    }
}

